Tristan H. Cockcroft and A.J. Mass discuss the replacements for Welington Castillo (4:30), rookies to look out for like Gleyber Torres and Tyler O'Neill (20:00), a Closer Carousel (26:00) and more. Plus, they take your #06010MLB questions.

Miles Mikolas pitched his first career shutout and Tyler O'Neill homered for the third straight game and drove in four runs, leading the St. Louis Cardinals to a 6-0 victory over the Kansas City Royals on Monday night.

Vince Velasquez pitched shutout ball into the seventh inning, and Carlos Santana and Pedro Florimon each hit home runs in the Philadelphia Phillies' 6-2 victory over the St. Louis Cardinals on Thursday night.

The Cardinals are "hitting the pause button" with pitcher Adam Wainwright and moving him to the 60-day DL because of persistent pain in his right elbow.

Tristan H. Cockcroft ESPN Senior Writer

Bud Norris will surely be one of my bigger-moving relievers in my next rankings update. I know he cooled late last year, but lots to like in 2018: career-best BB% (3.7), increased velocity, improvement vs. LHB. A top-20 RP ranking is warranted.